SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Wilson, William W.; Jabs, Eric J.; Dahl, Bruce L..

A stochastic optimization model was developed to determine optimal testing strategies, costs, and risks of a dual marketing system. The model chooses the testing strategy (application, intensity, and tolerance) that maximizes utility (minimizes disutility) of additional system costs due to testing and quality loss and allows simulation of the risk premium required to induce grain handlers to undertake a dual marketing system versus a Non-GM system. Cost elements including those related to testing, quality loss, and a risk premium were estimated for a model representing a grain export chain. Uncertainties were incorporated and include test accuracy, risk of adventitious commingling throughout, and variety declaration. Sensitivities were performed for...

The U. S. Corn Farmers' Genetically Modified Technology Adoption with Neighborhood Effects

Palavras-chave: Segregation; Testing; Tolerance; Genetically Modified; Wheat; Risk Premium; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.

Ano: 2003

URL: http://purl.umn.edu/23605

Yoo, Do-il.

Vegetable Production and Pesticide Use in Ghana: Would GM Varieties Have an Impact at the Farm Level?

Palavras-chave: Genetically Modified; Neighborhood Effects; Consumer/Household Economics; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies.

Ano: 2010

URL: http://purl.umn.edu/61824

Horna, J. Daniela; Timpo, Samuel E.; Al-Hassan, Ramatu M.; Smale, Melinda; Falck-Zepeda, Jose Benjamin.

The objective of this study is to evaluate pesticide use as an important factor affecting potential adoption and farm level impact of genetically modified (GM) vegetable varieties in Ghana. Tomato is the most consumed vegetable and a food security crop. Cabbage is a vegetable of growing importance but limited cultivation and is produced in urban areas. Garden egg is a native African crop of wide consumption and importance for rural economies. Farm level information was collected in randomly selected sites in southern and central regions of Ghana. Partial budget analysis shows that investments in pesticides are rather low, especially for tomato and garden egg. Analysis of production using an abatement framework shows that insecticide amounts are significant...

The State Contingent Approach to Farmers' Valuation and Adoption of New Biotech Crops: Nitrogen-Fertilizer Saving and Drought Tolerance Traits

Palavras-chave: Farm; Genetically Modified; Ghana; Tomato; Agricultural and Food Policy; Consumer/Household Economics; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; International Relations/Trade; Marketing; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.

Ano: 2008

URL: http://purl.umn.edu/52182

Jaramillo, Paul E.; Useche, Pilar; Barham, Bradford L.; Foltz, Jeremy D..

We used a state contingent approach to give a detailed analysis of the uncertainty surrounding seed trait adoption. Our framework emphasizes the role of timing and information in farmers’ adoption decisions. The inherent embeddedness of seed traits results in timing restrictions and the inability of post-planting adjustments, this in turn results in farmers necessarily engaging in a game with nature. Two main types of traits we identify are supplementing traits and stabilizing traits – classification into each category is directly related on the mobility of the production factor the trait intends to substitute. Supplementing traits allow for acting after nature (i.e., ex post) while stabilizing traits are better modeled as acting before nature (i.e., ex...

Consumer Acceptance of Genetically Modified Foods in Taiwan: Is Positive Discount the Same as Negative Premium?

Palavras-chave: State Contingent; Genetically Modified; Biotech; Contingent Valuation; Nitrogen Absorption Efficiency; Drought Tolerance; Uncertainty; Seed Trait; Technological Adoption; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.

Ano: 2010

URL: http://purl.umn.edu/61860

Kaneko, Naoya; Chern, Wen S..

This paper finds Taiwanese consumers' willingness to pay a premium on the non-GM food differs from their willingness to accept a discount on the GM food. It further finds that the non-GM choosers are more committed to the non-GM food than the GM choosers to the GM food.

MARKETING MECHANISMS IN GM GRAINS AND OILSEEDS

Palavras-chave: Genetically Modified; Contingent Valuation; Willingness to Pay; Stated Preference; Consumer/Household Economics; Q0; D1.

Ano: 2005

URL: http://purl.umn.edu/19491

Maxwell, Brett J.; Wilson, William W.; Dahl, Bruce L..

A number of challenges exist for genetically modified (GM) crop development at the production level. Contract strategies can resolve these challenges. Contracts can be designed to induce legal adoption of GM wheat by varying technology fees, violation detection, and penalties. The primary objective of this research is to analyze contracting strategies to determine terms to minimize technology agreement violation and to induce legal adoption of GM wheat. A simulation model of a crop budget for Hard Red Spring wheat was developed. Results illustrate that contracts can be designed to induce desired behavior. Technology fee, probability of detection, and the level of non-GM premium were the most notable factors influencing adoption decisions.

CONTRACTING STRATEGIES FOR EU TRACEABILITY REQUIREMENTS

Palavras-chave: Producer Decisions; Risk; Genetically Modified; Contract Terms; Wheat; Crop Production/Industries.

Ano: 2004

URL: http://purl.umn.edu/23639

Wilson, William W.; Dahl, Bruce L..

A principal-agent problem was specified to define the equilibrium solution of a contracting strategy for a U.S. supplier exporting wheat to meet EU traceability requirements. The buyer (principal) offers a contract, the supplier (agent) accepts the contract, and then the supplier decides whether to offer a contract to the farmer. Nature at each level of the supply chain represents uncertainty due to adventitious commingling and imperfect information. Results indicate farmers would require 9 c/bu and suppliers 8 c/bu to induce their participation in the contracting strategy.

Analysis for biotechnology innovations using Strategic Environmental Assessment (SEA)

Palavras-chave: Traceability; Principal-Agent; Contracting; Genetically Modified; Wheat; European Union; Food Consumption/Nutrition/Food Safety.

Ano: 2006

URL: http://purl.umn.edu/23535

Lanacre, Nicholas A.; Gaskell, Joanne; Rosegrant, Mark W.; Falck-Zepeda, Jose Benjamin; Quemada, Hector; Halsey, Mark; Birner, Regina.

Meeting the food needs of the world’s growing population while reducing poverty and protecting the environment is a major global challenge. Genetically modified crops appear to provide a promising option to deal with this challenge. However there is a need to make strategic decisions on how to spend limited agricultural research funds in order to achieve a maximum impact with regard to finding sustainable solutions to end hunger and poverty. In international development institutions, there is growing interest in the potential use of Strategic Environmental Assessment (SEA) as part of a research based Environmental Management System (EMS) to promote mainstreaming of environmental considerations in policy development. SEA was developed as an approach to...

PERCEPTIONS OF GENETICALLY MODIFIED AND ORGANIC FOODS AND PROCESSES: NORTH DAKOTA COLLEGE STUDENTS

Palavras-chave: Risk; Strategic Environmental Assessment; Genetically Modified; GMO; LMO; Living Modified Organisms; Biotechnology; Environmental risk; Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies.

Ano: 2005

URL: http://purl.umn.edu/58584

Anderson, Jon C.; Wachenheim, Cheryl J.; Lesch, William C..

Perceptions of genetically modified (GM) and organic food among North Dakota college students were elicited and compared. Participants responded to one of two survey instruments containing identical wording except for reference to genetic modification or organic, after reading a primer defining the term used in their instrument. Participants' indicated their level of agreement with statements in the construct areas of health, environment, ethics, regulation, and risk. Responses were compared among survey instruments and to responses to previous surveys of Americans and of shoppers in North Dakota. Organic food was perceived as a healthier and safer choice. Organic practices were perceived to be more environmentally sound. Respondents expressed a...

Effects of Information on Consumer Risk Perception and Willingness to Pay for Non-Genetically Modified Corn Oil

Palavras-chave: Genetically Modified; Consumer Perceptions; Organic; Food Consumption/Nutrition/Food Safety.

Ano: 2005

URL: http://purl.umn.edu/23635

Terawaki, Taku.

Replaced with revised version of paper 07/16/05.